1#!/usr/bin/awk -f
2# This file is part of ltrace.
3# Copyright (C) 2006 Ian Wienand
4# Copyright (C) 1999 Juan Cespedes
5#
6# This program is free software; you can redistribute it and/or
7# modify it under the terms of the GNU General Public License as
8# published by the Free Software Foundation; either version 2 of the
9# License, or (at your option) any later version.
10#
11# This program is distributed in the hope that it will be useful, but
12# WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14# General Public License for more details.
15#
16# You should have received a copy of the GNU General Public License
17# along with this program; if not, write to the Free Software
18# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
19# 02110-1301 USA
20
21# hack expression to generate arch/syscallent.h from <asm/unistd.h>
22# It reads from stdin and writes to stdout
23# It should work OK on i386,m68k,arm,ia64
24# It does NOT work in mips, s390
25# It is untested in other architectures
26
27BEGIN {
28	max=0;
29	FS="[ \t\n()+]+";
30}
31
32{
33	#debug
34	#printf("/%s/%s/%s/%s/\n", $1, $2, $3, $4);
35	if (($1 ~ /^#define$/) && ($2 ~ /^__NR_/)) {
36	        #ia64 syscalls are > 1000 (lower for x86 compat)
37		if (($3>=0) && ($3<=2000)) {
38			SYSCALL[$3]=substr($2,6);
39			if ($3 > max) {
40				max=$3;
41			}
42		} else if (($3 ~ /^__NR_SYSCALL_BASE$/) && ($4>=0) && ($4<=1000)) {
43			SYSCALL[$4]=substr($2,6);
44			if ($4 > max) {
45				max=$4;
46			}
47		}
48	}
49}
50
51END {
52	for(i=0; i<=max; i++) {
53		if (!SYSCALL[i]) {
54			SYSCALL[i] = i;
55		}
56		pad = 32 - length(SYSCALL[i]);
57		if (pad<1) {
58			pad=1;
59		}
60		printf("\t\"%s\",%*s/* %d */\n", SYSCALL[i], pad, "", i);
61	}
62}
63
64